PI3B16211 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, Hot Insertion, 24-Bit BusSwitch Features Description • • • • • • • Pericom Semiconductor’s PI3B16211 is a 3.3 volt, hot insertion, 24bit bus switch designed with a low On-Resistance allowing inputs to be connected directly to outputs. This device operates as a 24bit or a as 12-bit bus switch that provides high-speed bus switching. Near-Zero propagation delay 5-ohm switches connect inputs to outputs Fast Switching Speed - 4.5ns max. Permits Hot Insertion VCC operating range: 3.0V to 3.6V Industrial operating temperature: –40°C to +85°C Packaging (Pb-free & Green available): – 56-pin 240-mil wide thin plastic TSSOP (A) – 56-pin 300-mil wide plastic SSOP (V) – 56-pin 173-mil wide thin plastic TVSOP (K) Pin Configuration Block Diagram 1A1 12B1 1A12 1B12 1OE 2A1 2B1 2A12 2B12 2OE Truth Table NC 1 56 1OE 1A1 2 55 2OE 1A2 3 54 1B1 1A3 4 53 1B2 1A4 5 52 1B3 1A5 6 51 1B4 1A6 7 50 1B5 GND 8 49 GND 1A7 9 48 1B6 1A8 10 47 1B7 1A9 11 46 1B8 1A10 12 45 1B9 1A11 13 44 1B10 1A12 14 43 1B11 1OE 2OE 1A, 1B I/Os 2A, 2B I/Os 2A1 15 42 1B12 L L 1A = 1B 2A = 2B 2A2 16 41 2B1 L H 1A = 1B Z VCC 17 40 2B2 H L Z 2A = 2B 2A3 18 39 2B3 H H Z Z GND 19 38 GND 2A4 20 37 2B4 2A5 21 36 2B5 2A6 22 35 2B6 2A7 23 34 2B7 2A8 24 33 2B8 2A9 25 32 2B9 2A10 26 31 2B10 2A11 27 30 2B11 2A12 28 29 2B12 Note: 1. H = High Voltage Level, L = Low Voltage Level Z = High Impedance Pin Description Pin Name 1OE, 2OE I/O I De s cription Select Inputs xAx I/O Bus A xBx I/O Bus B 1 PS8176D 09/29/04 PI3B16211 3.3V, Hot Insertion, 24-Bit Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ...................................................... –65°C to +150°C Ambient Temperature with Power Applied ........................ –0°C to +85°C Supply Voltage Range ....................................................... –0.5V to +4.6V DC Input Voltage ............................................................... –0.5V to +4.6V DC Output Current ........................................................................ 120 mA Power Dissipation ............................................................................. 0.5W Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.0V to 3.6V Parame te rs Te s t Conditions (1) De s cription M in. Typ.(2) M ax. VIH Input HIGH Voltage Guaranteed Logic High Level 2.0 VIL Input LOW Voltage Guaranteed Logic Low Level –0.5 IIH Input HIGH Current VCC = Max.; VIN = VCC ±1 IIL Input LOW Current VCC = Max.; VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ A, B ≤ VCC VIK Clamp Diode Voltage RON Switch ON Resistance(3) Units V 0.8 µA ±1 VCC = Min, IIN = –18mA –0.7 –1.2 V VCC = Min., VIN = 0.0V, ION = 48mA or 64mA VCC = Min., VIN = 2.4V, ION = 15mA 5 10 8 15 Ω Capacitance (TA = 25°C, f = 1 MHz) Parame te rs (5) CIN De s cription Te s t Conditions Input Capacitance C O FF A/B Capacitance, Switch Off CON A/B Capacitance, Switch On Typ. Units 3.0 VIN = 0V 8.5 pF 17.0 Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading. 3. Measured by the voltage drop between A and B pin at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (A,B) pins. 4. This parameter is determined by device characterization but is not production tested. 2 PS8176D 09/29/04 PI3B16211 3.3V, Hot Insertion, 24-Bit Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Parame te rs Te s t Conditions (1) De s cription M in. ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC ∆ICC Supply Current per Input @ TTL High VCC = Max. VIN = 3.0V(3) ICCD Supply Current per Input per MHz(4) VCC = Max. A & B Pin Open Control Input Toggling 50% Duty Cycle Typ(2) M ax. Units 10 µA 750 0.25 mA/ MHz Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 3.3V, +25°C ambient. 3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC. 4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design. RL = 500-ohms, R = 500-ohms(4) Switching Characteristics over Operating Range Com. Parame te rs Conditions (1) De s cription M ax. Delay(2,3) tPLH tPHL Propagation Ax to Bx, Bx to Ax tPZH tPZL Bus Enable Time BE to Ax or Bx tPHZ tPLZ Bus Disable Time BE to Ax or Bx CL = 50pF, RL = 500 ohms R = 500 ohms M in. Units 0.25 1 4.5 1 5.0 ns Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested on Propagation Delays. 3. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for 50pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. 4. Applies to tPZX, tPXZ. 3 PS8176D 09/29/04 PI3B16211 3.3V, Hot Insertion, 24-Bit Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Packaging Mechanical: 56-Pin TSSOP (A) Packaging Mechanical: 56-Pin SSOP (V) 56 .291 .299 7.39 7.59 .396 .416 10.06 10.56 Gauge Plane .010 0.25 1 .720 18.29 .730 18.54 .02 .04 0.51 1.01 .015 0.381 x 45˚ .025 0.635 .008 0.20 Nom. .110 2.79 Max .025 BSC 0.635 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS .008 .0135 0.20 0.34 4 0-8˚ .008 0.20 .016 0.40 PS8176D 09/29/04 PI3B16211 3.3V, Hot Insertion, 24-Bit Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Packaging Mechanical: 56-Pin TVSOP (K) 56 .169 .177 4.30 4.50 1 .441 .449 0.45 .018 0.75 .030 .031 .041 0.80 1.05 11.20 11.40 0.09 0.20 .0035 .008 .252 BSC 6.4 SEATING PLANE .016 BSC 0.40 X.XX X.XX .002 .006 0.05 0.15 .005 .009 0.13 0.23 .047 1.20 Max. DENOTES DIMENSIONS IN MILLIMETERS Ordering Information Ordering Code PI3B16211A PI3B16211AE PI3B1621V PI3B16211VE PI3B16211K PI3B16211KE Package Code A A V V K K Package Type 56-pin 240-mil wide TSSOP Pb-free & Green, 56-pin 240-mil wide TSSOP 56-pin 300-mil wide SSOP Pb-free & Green, 56-pin 300-mil wide SSOP 56-pin 173-mil wide TVSOP Pb-free & Green, 56-pin 173-mil wide TVSOP Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 5 PS8176D 09/29/04